There's a high chance of devices being sold with GrapheneOS preinstalled in 2027
(grapheneos.social)
If you need security I would recommend that you overcome your predispositions and either get an affordable phone that is supported by graphene (a pixel) or an iphone.
If you do not need security then no worries, but it would be a shame to end up in a bad situation because you felt it was a bridge too far to use a phone from a particular company.